<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style type="text/css">
        .div2{
            border-image: url("../img/github.png");
            border-radius: 29px;
            width: 350px;
            box-shadow:10px 10px 10px #0c91e5;
            height:90px;
        }
        .div3{
            background-size: 30px 40px;
            background-image: url("../img/github.png");
            width: 500px;
            height: 300px;
            background-repeat: no-repeat;
            border:1px solid red;
            padding: 30px;
            margin:30px;
            background-origin:border-box;
            z-index: 2;
        }
    </style>
</head>
<body>
<div class="div2">div2</div>
<div class="div3">div3</div>


</body>
</html>